| 摘要 |
FIELD: sheet forming, possibly drawing of different parts of sheet materials, particularly for forming body part of complex shape for motor vehicles, buses, agricultural machines and so on. SUBSTANCE: during main stage of process drawing is realized at holding blank by means of pneumatic springs. During final stage of process drawing is realized at holding blank by means of press cushion. At termination of process drawn semifinished product is subjected to sizing in such a way that sizing effort is transmitted through bodies of pneumatic springs. EFFECT: improved accuracy and quality of drawn parts, lowered consumption of rolled sheet. 2 dwg
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